Kauai Wind Farm Environmental Impact Statement Prepared by Pacific Environmental Assessment Coalition On behalf of Four Winds Energy Inc.
Kauai Wind Farm
Environmental Impact Statement
Prepared by Pacific Environmental Assessment Coalition
On behalf of Four Winds Energy Inc.
1. Project Proposal
Purpose and Need
2. Alternatives
No action
Scale
Location
Operation Treatments
Technologies & Design
3. Affected Environment
Human Environment
Consequences & Alternatives
Physical Environment
Consequences & Alternatives
Biological Environment
Consequences & Alternatives
Content
Introduction:
Four Winds Energy proposes to build a 10 megawatt wind farm in Kauai, Hawaii.
The project would work in conjunction with the Kauai Island Energy Cooperative.
Purpose and Need
Lower dependence on foreign oil
Lower cost of electricity for consumers
Tap into unused renewable resources
Hawaii Clean Energy Initiative
Location
Alternatives
No Action Alternative
Limitations in other renewable energy sources Solar, PV
Hydropower
Biomass
Fossil fuels
Other concerns Energy efficiency
Sourcing energy from other islands
Options Eliminated from Further Study
Larger Scale Environmentally Intrusive
Negative impacts on endangered avian species
Smaller Scale Contributes little to
Kauai’s energy portfolio
Alternatives For Further Protection of Avian Species
“Relatively small changes to wind-turbine operation resulted in nightly reductions in bat mortality, ranging from 44% to 93%, with marginal annual power loss (< 1% of total annual output).”
(Arnett et al, Altering Turbine Speed Reduces Bat Mortality at Wind-Energy Facilities)
Operation Treatments
Increasing Cut-in Speed HOW: increasing the cut-in speed to ≥ 5 m/s
PRO: reducing the risk to avian species when energy potential is lower
CON: unknown how this applies to native avian fauna populations
Restricting Nocturnal Operations HOW: limiting operations after point of total darkness
PRO: mitigate threat to nocturnal Newell’s Shearwater population
CON: cost-prohibitive, significant loss in energy production
Seasonal Operation HOW: limit operations during the critical reproductive period for Newell’s Shearwater
PRO: reduce the impact on Newell’s Shearwaters population on Kauai
CON: cost prohibitive, significant loss in energy production
Technological Applications
Ultrasonic Acoustic Deterrence HOW: Installation of “ultrasonic boom boxes”
PRO: Aimed to reduce bat fatalities at wind farms
CON: Inconclusive results, unknown risk
De-Tect, Inc. Monitoring & Mitigation Systems
BirdMap Site Pre-Screening Risk Assessment
MERLIN Avian Radar System
VESPER: Fixed-beam Vertical Profile Bird & Bat Radar
SCADA (Supervisory Control and Data Acquisition) “DeTect's MERLIN SCADA is the only proven bird and bat
mortality risk technology in operational use at wind farms”
(http://www.detect-inc.com/wind.html)
(http://www.detect-inc.com/)
Alternative Designs
Underground Transmission Lines HOW: install new transmission lines under the
surface and tie-in with existing overhead transmission lines
PRO: reduce additional threats to avian species
CON: increased cost (installation & maintenance)
Saphonian Model
“Curved, sail-shaped body which follows a back-and-forth, 3-D knot motion”
“Allows the conversion of the majority of the wind kinetic energy into mechanical energy, either directly (mechanical transmission) or through the use of pistons (hydraulic transmission)”
(Saphonenergy.com)
Alternative Designs
EWICON Model: Electrostatic Wind Energy Convertor
Fuller Wind Turbine Powered by the Tesla turbine which “is spun by the surface tension of fluids, which “grab” the wheel and turn it before exiting out the center.”
Alternative Locations
High average wind speeds
Not on protected lands
Proximity to coast and current roadways
Between two major populated areas
Why This Location?
Wind Speed on Kauai
Offshore Wind Farms
Higher Winds… Higher Prices
Kauai’s Shallow Reefs
The island of Kauai is surrounded with shallow reefs which would force offshore wind turbines in deeper,
more expensive waters.
Cost of Installation & Repair
Affected Environment
Community and Culture
“The Garden Isle”
The people have a friendly nature, laid back lifestyle.
Residents consider themselves to be stewards of the island
Native Hawaiian traditions are very important and even legally protected
Population Centers
Koloa and Poipu
Koloa is a small town with permanent residents
Poipu is a resort area, catering mainly to tourists
Lihue
The center of island government and commerce
Total combined population of 8,599
Public Services
Kauai Island Utility Cooperration
Active solar and hydropower facilities
The main emergency medical facility is Wilcox Memorial Hospital in Lihue
Wilcox is designated as a Level 3 Trauma Center, serious cases are transported to Oahu
Transportation Infrastructure
Nawiliwili port in Lihue
Lihue is home to the island’s main airport
Closest major entrance to the site is Highway 50, a two lane rural road
Kahili Road connects Highway
50 to smaller roads on site
Regulations
Federal
Endangered Species Act (ESA)
Federal Aviation Administration (FAA)
State
HRS 343, Act 50, Cultural Impact Assessment (CIA)
Article XII, Section 7 of the Hawai‘i State Constitution
Little negative impact due to location and scale of project
Will work with Kauai County to insure adequate transportation infrastructure
Open communication with Kauai Island Utility Cooperative to minimize down time while transitioning to power grid
Will conduct Cultural Impact Assessment to ensure no impact
Community and Cultural Impacts
Human Environment
Current and Future Land Use
Economic Growth
Farmlands/Timberlands
Community Impacts
Economic Growth
Increase Self Reliance
Lower Pollution
Promote More Jobs
“The Garden Isle”
Human Environment Impacts
A very small portion of farmland will be cleared for the wind farm site.
Local input will be taken into consideration to achieve economic growth and still preserve the
Kauai way of life.
Physical Environment
Hydrology
Surface Water
Ground Water
Floodplain
Water Quality
Storm Water Runoff
Geology
Topography
Soils
Seismic Activity
Paleontology
Pollutants
Hazardous Wastes
Noise
Energy
Air Quality
Biological Environment
Kauai Conservation Area
36 natural community types
383 endemic plant species 80 considered rare/endangered
15 endangered avian species Newell’s Shearwater
Invasive Species
Most significant:
Feral Pigs
Polynesian (AD 400)
& European (1778)
Also:
Feral goats
Mule deer
Introduced rodent species
Project Scope
Hulē’ia National Wildlife Refuge
Four Winds Energy proposes to build a 10 megawatt wind farm in Kauai, Hawaii
Alternative locations, designs have been considered
Impact to culture, biological, physical, and human environment have been considered
Working in partnership with Kauai Island Utility Cooperative towards sustainable energy goals
Summary